Machinery for



UNITED sTATEs PATENT ojEErcE..;`

JOHN MCCUNE, OF SENEGVILLE, OHIO.

MACHINERY FOR CUTTING TENONS 0N ENDS OF SPOKES,

Specification of Letters Patent No. 5,173, dated June 26, 1847,

To all whom t may concern.'

Be it known that I, Jol-IN MGCUNE, of Senecaville, in the county ofGuernsey and State of Ohio, have invented a new and useful Mode ofCutting Round Tenons on the Ends vof Spokes of CarriageNVheels After theSpokes are Driven into the Hub, which is described as follows, referencebeing had to the annexed drawings of the same, making part of thisspecication. f

Figure 1 is a side elevation of the apparatus.' Fig. 2 'is a front viewof cutter stock. Fig. 8 is a perspective view of the side of the knifenext the stock, showing the right angled cutter.

The apparatus by which the round tenons arecut on the spokes, consistsof a stock or block A, into which are inserted two adjustable posts B,B, containing adjustable boxes C C, in ,which are placed a shaft ormandrel D, having two branches E, at one end, and a crank F at the otherend, and a gage G near the middle, said shaft having a longitudinal aswell as a rotary motion, produced by the operator applying his hand tothe crank F, turning and pressing it forward toward the spoke to betenanted, or borne up by a spiral spring, wound around the said shaft ormandrel D, and bearing against the gage and post, or caused to revolveor advance simultaneously in any convenient way, the outer extremitiesor ends of the branches being made straight, and parallel, and in theform of screws, and passed through a stock H, or combined set of blocks,in which the cutter is fastened for cutting the tenons on the spokes.This stock is composed of four blocks H H H H, and four plates I I I I,held together by means of parallel transverse screws J, inserted throughthem transversely, the two parallel long blocks having shoulders at themiddle, against which the two short blocks are brought and secured, andhaving a metallic block K with a concave rest, for the spoke placedbelow the knife, to prevent the wearing of the wood, an opening L beingmade in the center of the combined block, to admit the end of the spoketo pass through, while the cutter takes off the wood from the outside,leaving the center solid to form the tenon, which passes into the centerof the said combined block. The cutter-,M, is an obtuse angled plate,with two cutting edges one vertical and the other at right anglesthereto. The cutter is fastened over the .central opening by screws,having a throat behind it designed to let the chips pass through itfreely. The metallic plates which may be increased Vor diminished vinnumber, for the purpose of moving the block to which the cutter'isfastenedfarther from the center of the openingfin order to increase thesize of the tenen t0 be. cut.l `When` vrequired to be enlarged moreplates must be inserted and when required to be diminished the platesmust be removed.

The cutter'l M is made of a cast steelplate, Il

in the' form of an obtuse angle, as above stated, with two oblongmortises to admit` set screws, kby which it ismfastened and vad.-

justed to the revolving stock, having one of its sides M made sharp tomakethe vertical cut, and a lip m at right` angles, also made ,A l

Sharp fortakins @if the..,SLf1rP1uS Wood from passes through the centralopening. The

cutter stock H, is fastened to the two 175 around"'the center, formingthefte'nonwhich'y l The apparatusis secured to the spoke 'to be tenantedby means of two semi-oval straps P P, fastened by their lower ends byscrews to the stock A, sok as to embrace the spoke to be tenanted, whichis inserted into the space embraced by said straps, bringing thatportion of the spoke whichv is to form the shoulder, even with the innerside of the inner strap P which is carried toward the cutter, the spaceinside the straps if too large for the spokes being bushed, or made toreceive other straps, in order vto make it correspond to the sizes ofthe spokes; the spokes being held firmly therein, by a screw Q, having asemi-circular bed plate R, at the end thereof, which is pressed againstthe under side of the spoke, drawing the strap P, down upon the spoke,by which the appa* ratus for cutting the tenon is held firmly in asuspended position, upon the end Vof the spoke during the operation ofcutting .the tenon. Vhen the angle of the axis of the mandrel or shaft,is required to be changed in order to make it correspond with the'alngleof the required tenon, the nuts a, b on Y the screw posts must be turnedso as to raise one end, and depress the other end. The

apparatus being suspended, to the end of a spoke' of a wheel7 in ahorizontal position, and the screw Q turned vagainst the under sidethereof, forces down the stock A, drawaV round tenon in the center,which passes into the center' of the stock H the full length,

which is determined by the gage collar G,

which is set to strike against the post B, when the cutter has advancedover the spoke as far as it is intended to go. The screw Q.

is then turned to the left, and the apparatus f removed to another spokeWhich is treated in a similar manner. And so on with all the spokes;

Thecircle' of the inner circumference of the fellies, must be describedon the spokes2 vafter being secured in the hub, by means o1 a tram, orother suitable implement, so as to be seen clearly that the curved endof the strap P may be brought to said scribe, and

, then Athe gage collar G being set in the reyquired position on themandrel, Will be made l i Vitnesses to come in contact with the post,the moment the cutter reaches the aforesaid' circular line, when theadvance of the cutter vvill be arrested, by which operation, all theshoulders of the spokes will be in the same circle.

The vertical knife or cutter is set slightly inclining, so as to causeit to take feed toward the shoulder of the tenon, Without the :necessityof pushing it forward by hand.

I am aware that round tenons have been cut on spokes of carriage Wheels,in various Ways, but, I am not aware of their ever llaving been cut byanapparatus similar to that above described, suspended to the end ofleach spoke, during the operation of cutting the tenon; and,

Therefore, What I claim as my invention,

Zand desire to secure by Letters Patent, is

The before described mode of cutting roundtenons on the ends of thespokes of :carriage Wheels, by means of an apparatus constructed asabove described, suspended to the end of each spoke, during theoperation gof cutting the round tenon thereon.

JOHN MCCUNE.

WM. P. ELLIOT, ALBERT E. H. JOHNSON.

